Process of decorating paper



Aug. 18, 1931. H. M. ROSS 1,819,793

PROCESS OF DECORATING PAPER Filed Aug. :5, 192a INVENTOR. A fiflkk) H. Kass.

A TTORNEY-S.

Patented Aug. 18', 1931 UNITED s'ra'lrizs PATENT; OFFICE HARRY M. ROSS OF INDIANAPOLIS, INDIANA, ASSIGNOR OF ONE-HALF TO IBE'V'ERIDGE PAPER COMPANY, OF INDIANAPOLIS, INDIANA, A CORPORATION I PROCESS or nnoonarmo PAPER Application filed August 3, 1928. Serial No. 297,233.

This invention relates to the process and means for decorating paper, and particularly that class of paper used for; calendars, bristols, cover paper, photo mounts, boxboard and the like, having an embossed and multicolored surface or surfaces.

The object of the invention is to process the paperafter embossing the same so as to brush a coloring material upon the high surfaces thereof withouteifecting the coloring of the lower surfaces. This brings out in high relief the embossed design with two or more color efi'ects applied to either one or bothsurfaces in a single operation.

Another, object of the invention is to so process the paper as hereafter described, as to enable the'work. to be done in. a rapid. and

economical manner for production purposes.-

Tli full nature of theinvention will be '20 more clearly understood'from the accompany .ing drawings and" the following description and claim: v V

Fig. 1 is a diagrammatic illustration of an apparatus for carrying out the process. Fig.

2 is a view taken on the line 2-2 of Fig.1.

Fig.3 is an enlarged section through a strip of the embossed paper indicating the color-- ing effect upon one of the embossed surfaces thereof. Fig. 4- is a plan view of the dec0- rated surface of the paper.

In the drawings there is illustrated a paper roll 10 which is suitably supported to carry a roll of relatively heavy smooth surfaced paper, which has a base color. The paper is drawn from the roll 10 about the guide roll 11 over the counter roll 12 and caused to pass between said counter roll 12 and the emboss ing roll 13. The embossing roll is provided with a suitable embossing surface 14 adapted to impress designs of varying character in the paper, leaving depressions'and elevations 1n the surfaces thereof. The paper is then carried under the guide roll 15 and about'the brushing rolls 16 to the carrying roll 17. Po-

and having axes slightly above the axes thereof, there are corresponding coloring rolls 18.-

The rolls above referred to are all suitably v in the paper. As the rolls 16 travel faster than the sitioned to one side of-the brushing rolls 16 rotate at a higher speed than the other rolls. A quantity of coloring material or paint 19 is carried between the respective brushing rolls 16 and coloring rolls 18, which rolls are in contact and caused to rotate in the direction indicated by the arrows. material or paint 19 is thus ap lied in a very thin coating, by reason of the c ose contact of the rolls 16 and 18 to the surfaces of the rolls 16, and carried thereby into contact with both sides of the paper sheet 10.

By reason of the smooth even surfaces of the brushing rolls 16, they contact only with the elevations of the embossed paper. The film of coloring material carried on the surface of the brushingrolls is so thin that the coloring material likewise comes into contact only with the highspots or elevations formed are caused to I paper, the paint is brushed therefrom onto the elevations by reason of their contact, but no material will be' applied to the low spots or depressions.

-The-effect of the coloring thus obtained may be varied, depending upon the speed at which the brushing rolls 16 are driven with respect to the speed at which the paper is drawn past the same. Wherein" the speed is increased, the brushing effect will be lighter and only the very highest spots or elevations The coloring paint or coloring of the paper will be brushed. Wherein thev speed is reduced, approximating the speed of the paper, lowersurfaces, although not'entirely reaching the depressions. Thusywhen the speed of the rolls16 is decreased, but is still greater than the speed at which the paper is passed thereabout, there is more detail obtained in the coloringeffect. 1 p 4 As illustrated-in Fig. 3, the paint 19 is shown applied to the high spots or elevations, whereas the depressions 20 are free therefrom so as to expose. the-natural 'or base color.

ratus shows the strokefor applying the coloring to both sides of the paper during the same operation. In. this connection, itwill be apparent that different coloring may be applied to opposite sides of the. paper and different The diagrammatic illustration of the appaa the palnt. will be applied "to shading effects obtained by varying the speed of the rolls 16 with respect to each other and the paper passing thcreabout. It will also be understood that where desired, one of the rolls 16, or its associated coloring roll 18, may be eliminated so as not to color one side of the paper and thereby apply the process to only one side thereof.

\Vhereas it has above been mentioned that the rolls operated at a greater speed than the paper, the same effect and process may be employed wherein commercially practical, by operating the paper at a greater speed than the rolls. In other words, the effect is obtained by varying the relative speed between the rolls and the paper.

The invention claimed is:

An apparatus for decorating paper including a pair of embossed rolls through which the paper is continuously passed for embossing the surface thereof, a pair of coloring rolls mounted in said apparatus parallel with each other with their surfaces in rolling contact for providing a pocket adapted to receive and retain therein a deposit'of coloring material, means for continuously directing the paper from said embossing rolls about the outer free surface of one of said coloring rolls remote from the deposit of coloring material and the adjacent roll and with the embossed surface in direct contact therewith, and means for imparting a different speed to said paper with respect to said coloring rolls, whereby it will receive a thin application of coloring on the raised portion thereof leaving the depressed portion free therefrom.

In witness whereof, I have hereunto affixed my signature.

HARRY M. Ross. 

